Unit 7 Lesson 38 The World Is a Big Place 课件 2023-2024学年冀教版英语八年级下册 (共18张PPT)

(共18张PPT)
Unit 7 Know our world
Lesson 38 The World Is a Big Place
新
课
导
入
What do you know about earth
The earth is a planet.
One third of the planet is land.
行星
三分之一
Parts of this land are very dry. They are called deserts.
沙漠
land
oceans
Oceans cover two thirds of the earth’s surface.
三分之二
表面，表层
Language Goal
新知学习
课堂小结
当堂检测
学习目标
重点研讨
1.能熟悉并能正确运用本课时的重点单词和短语
2.能掌握关于世界人口,七大洲和四大洋的知识
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
新知学习
课堂小结
当堂检测
学习目标
重点研讨
THINK ABOUT IT
How many continents are there in the world What are they
What do you know about the place where you live
How many continents and
oceans does the world have
Can you point them out
新知学习
课堂小结
当堂检测
学习目标
重点研讨
The earth is a very special planet, and it faces a big problem. In the year 2010, the world’s population was over 7 billion in total. It is increasing very quickly. By 2025, the world may have about 8 billion people. And by 2050, the world’s population may reach 9 billion.
There is another problem. People can’t live everywhere on the earth. We can’t live in water, and only about one third of our planet is land. But parts of this land are very dry. These dry places are called deserts. Some areas have very high mountains. Others have a lot of snow and ice. It is not easy to live in those places.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
There are seven continents: Asia, Africa, Australia, Antarctica, Europe, North America and South America. Antarctica is covered with snow and ice all year round. Luckily, people can live on the other six continents. On these continents, there are green forests, fresh water and rich lands.
Oceans cover two thirds of the earth’s surface. The earth has only one big ocean, but we use these names for its different parts: the Pacific Ocean, the Indian Ocean, the Atlantic Ocean and the Arctic Ocean. The Pacific Ocean is the largest one.
The earth is our home now, and it will be our home in the future. It must be treated well for our children and for our children’s children, too!
新知学习
课堂小结
当堂检测
学习目标
重点研讨
1. Read the lesson and match each paragraph with its main idea.
Paragraph1
a. Six of the seven continents are good for
people to live on.
Paragraph2
b. We should treat the earth well.
Paragraph3
c. An increasing population is a big problem
for the earth.
Paragraph4
d. Two thirds of the earth is covered with oceans.
Paragraph5
e. People cannot live everywhere on the earth.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
1)．The number of swimmers here is __________ quickly
because it’s very hot these days.
2)．The school has a _____ of 900 students.
3)．I think it may be the ______ season of the year.
4)．The ______ of our body is skin. It protects us.
5)．How many ________ of people are there in the world now
2. Fill in the blanks with the correct forms of the words in the box.
increase dry surface billion total
increasing
total
driest
surface
billions
新知学习
课堂小结
当堂检测
学习目标
重点研讨
3.Match the seven continents with their correct descriptions.
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
1. 被动语态
被动语态表示主语是谓语动作的承受者，被动语态由“be + 过去分词”构成。be随着主语人称和数以及时态的不同而变化。含有情态动词的被动语态由“can / must / may / should … + be + 过去分词”构成。
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
1). 一般现在时的被动语态：am/is/are + 过去分词
2). 一般过去时的被动语态：was/were+过去分词
3). 一般将来时的被动语态：will/shall+be+过去分词　　
The first section of New College English is designed for
speaking practice and is based on pictures and topics.　　
These computers were made in our own country last year.
Shall we be asked to attend the opening ceremony 　
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
时态 主动语态 被动语态
一般现在时 do / does am / is / are + done
一般过去时 did was / were + done
一般将来时 will / be going to + do will / be going to + be + done
一般现在时、一般过去时和一般将来时的主动结构和被动结构 (以动词do为例)
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
2. in total, 总计；合计；总共
a total of … 总数为…… 例:
There are 60 students in total .
Our class has a total of 60 students .
3. treat sb./sth. well 好好对待……
翻译: 我们应当好好对待自己的父母亲。
We should treat our parents well .
改成被动句
Our parents should be treated well by us.
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
结论：
先分子后分母；分子基数词，分母序数词；
分子大于一，分母用复数。
4.观察下列分数表达并分析其中的规律
三分之一，one third
五分之一, one fifth
三分之二, two thirds
六分之五, five sixths
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
课堂小结
重点研讨
当堂检测
学习目标
新知学习
重点词汇：
in total
one third of...
be covered with ...
use ... for 被用于 be used for
be treated well
重点单词：
Unit 7
Lesson 38
1. There are ______ continents in the world. They
are :
2. There are _____ main oceans in the world. They
are:
seven
four
Asia, Europe, Africa, North America,
South America, Australia and Antarctica
the Pacific Ocean, the Atlantic Ocean,
the Indian Ocean and the Arctic Ocean
planet，billion
total，increase
surface，Indian
Atlantic，Arctic
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
当堂检测
重点研讨
课堂小结
学习目标
新知学习
一. 翻译单词或短语
1.星球 2.增长　 　　　
3.表面 4.总的来说　　　
5.被覆盖 6.三分之二　　　
two thirds
planet
increase
surface
in total
be covered with　
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
当堂检测
重点研讨
课堂小结
学习目标
新知学习
二、根据句意及首字母提示补全单词
1.The world’s population is i　　　 very quickly.
2.There is less l　　 than water on the earth.
3.E　　　 is the same size as China in area.
4.Greenland is the biggest i　　　 in the world.
5.The Nile is the longest r　　 on earth.
ncreasing
and
urope
sland
iver